Nancy Hess

99Tc NMR Study of Tc(V) Solids

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Herman Cho

Project type

Capability Research

Because of the wide variety of conditions and complexing agents found in radioactive wastes, technetium potentially exists in a multitude of interesting and novel chemical forms, both solid and…

Network analysis of soil organic matter molecular chemistry to enable more robust modeling of C cycle along ecosystem gradients

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

We will explore graphical network analysis of ultra-high resolution FTICR-MS datasets as the first step to derive a quantitative measure of soil organic matter quality that can inform microbially…

Raman Capability for EMSL Users

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

Large-Scale EMSL Research

Currently users of the EMSL facility do not have access to a to a dedicated Raman system. The objective of this proposal is to establish a usage agreement between the Environmental Spectroscopy…

Molecular-level investigation into the release and transformation of iron-bound soil organic carbon during redox reactions

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

This project aims to understand the release and transformation of iron (Fe)-bound soil organic carbon (SOC) during the redox reactions of Fe. SOC, with 1,500 gigaton of organic carbon (C) globally,…

Experimental and Theoretical Investigations on the
Chemistry and Dynamics of Ammonia Borane Dehydrogenation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Thomas Autrey

Project type

Large-Scale EMSL Research

Increasing demands for clean energy sources that do not add CO2 and other pollutants to the environment have resulted in increased worldwide interest in the possibilities of a "hydrogen economy…

A Conceptual Framework for Multiscale Simulation of Carbon Transport, Transformation and Disposition in the Soil-Plant-Microbe Continuum

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Timothy Scheibe

This project, designed to serve as the focal element of the System Thrust of EMSL’s Strategic Science Area (SSA), is aimed at the development of an integrated multiscale modeling framework that…

Microscale Spectroscopic Analyses of Cellulose Degradation and
Uptake by a Microbial Community

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

Exploratory Research

We seek to describe the acquisition and incorporation of cellulose-derived C into a complex microbial community that was been enriched from soil. In doing so at batch culture scales we will further…

Extracellular Research Thrust for EMSL SSA

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

Here we propose to address the basic geochemical and biogeochemical interactions that mediate organic-mineral interactions. Identifying binding mechanisms at the organic matter-mineral interface will…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

Biomolecular linkages between detrital inputs and soil organic matter decomposition in temperate forests

Lead Institution

Oregon State University

Principal Investigator

Kate Lajtha

Project type

Limited Scope

The DIRT project is a multi-decade experiment that manipulates litter inputs to large plots in a western coniferous forest by increasing needle litter or woody debris inputs, eliminating aboveground…

Spectroscopic studies of ambiphilic molecular complexes. Activation of small molecules with non-transition metal catalysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Thomas Autrey

Project type

Large-Scale EMSL Research

This project will provide fundamental insight into the catalytic activation and transformation of small molecules, e.g., H2, CO2, N2, CH4, by non-metal Lewis pairs in condensed phase environments…

Reconciling solids and solutions: Molecular characterization of dissolved organic matter across the major soil types and ecosystems of the United States

Lead Institution

University of Colorado at Boulder

Principal Investigator

Michael Sanclements

Project type

Limited Scope

This Rapid Proposal will facilitate completion of data analysis central to a broader research effort investigating soil organic matter (SOM) stabilization and vulnerability using a multi-scale…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Loring

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

Assessing Organo-metal and Organo-Mineral controls on Soil Organic Matter stabilization in B horizons using a diverse set of A horizons

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Soil organic matter (SOM) is transformed by microbial processes and transported through soils by water. SOM leached from A horizons and can be stabilized through mineral-organic and metal-organic…

Rhizosphere Research Campaign: The plant-soil interface - understanding dynamic interactions in the context of environmental change

Lead Institution

University of Missouri - Columbia

Principal Investigator

Gary Stacey

Project type

Research Campaign

The ultimate, long-term goal is to determine what drives source-sink relationships that control the cycling of plant nutrients belowground. To fully appreciate the complexities of this dynamic…

Biomolecular linkages between detrital inputs and soil organic matter decomposition across temperate forest regions

Lead Institution

Oregon State University

Principal Investigator

Kate Lajtha

Project type

Exploratory Research

Limited knowledge of the molecular mechanisms behind soil organic matter (SOM) stabilization and destabilization processes impedes improving models of earth systems and global carbon dynamics, as…

Microbial CH4 and CO2 Fluxes and C Stabilization Mechanisms in Soils

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Vanessa Bailey

Project type

Large-Scale EMSL Research

Current versions of the Community Land Model (CLM) do not represent the soil biogeochemical mechanisms controlling the fluxes of CO2 and CH4, two known greenhouse gases (GHG).. This failure is…

1000 Soils Research Campaign

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

MONet

To more fully understand the cycling of carbon, carbon-based nutrients and key elements from the molecular to basin scale across variations in soil chemistry, the Environmental Molecular Sciences…

Characterization of the bio-oil hydrotreating catalysts

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Mark Engelhard

PNNL is working on an EERE international collaboration project to exchange scientific and technical information on biomass feedstock production and conversion to biofuels with China and additionally…

TWIN Ecosystems Project

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

The goal of the TWIN ecosystem project (‘TWINS’) is to pilot laboratory and field ‘twin’ ecosystems that use sensors and autonomous controls to test the hypothesis that compositional changes in root…

Signatures of Environmental Perturbation - Microbial Community and Organic Matter Resilience

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Vanessa Bailey

The goal of this project is to use advanced statistical tools developed by PNNL Signature Discovery Initiative to discover one or more signatures that indicate impaired resilience of the soil carbon…

Signatures of Environmental Perturbation - Microbial Community and Organic Matter Resilience - Computing Adendum

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Vanessa Bailey

The goal of this project is to use advanced statistical tools developed by PNNL Signature Discovery Initiative to discover one or more signatures that indicate impaired resilience of the soil carbon …

Signatures of Environmental Perturbation - Microbial Community and Organic Matter Resilience

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Vanessa Bailey

The goal of this project is to use advanced statistical tools developed by PNNL Signature Discovery Initiative to discover one or more signatures that indicate impaired resilience of the soil carbon …

FTIR Investigation of Gamma Irradiation in HLW Waste Forms

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

Exploratory Research

Advancing soil C characterization using HRMS and NMR

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Soil organic matter consists of diverse and complex mixture of hundreds to thousands biological and metabolic products that are poorly characterized using current techniques. We seek to develop a…

Couple proton-electon dynamics in iron-containing phyllosilicates: annite, KFe3AlSi2O10(OH)2 - Mössbauer determination of Fe2+/Fe3+ ratio (N.Hess LDRD, PNNL SCOPE # 90001)

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

Project type

Exploratory Research

The focus of this investigation is coupled proton-electron dynamics in geochemical systems, specifically the redox reactions in annite, an iron-rich hydrous phyllosilicate. This topic is of…

Deciphering Microbial Communication Through Metabolites

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Thomas Metz

This project will establish a Metabolomics Center at PNNL that will develop the advanced measurement capabilities necessary to define the metabolic processes of microbiomes and determine how these…

Characterization of Synthetic Mixed Valence U Compounds

Lead Institution

The George Washington University

Principal Investigator

Christopher Cahill

Project type

Exploratory Research

The efforts proposed herein will explore the synthetic reaction conditions necessary to produce and stabilize pentavalent uranium oxide species under hydrothermal conditions. U(V) is a fleeting…

Rhizosphere processes at molecular to core scale

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

The amount of C in soil far exceeds the C content of atmosphere as well as the amount C stored above ground as plant biomass. The C fluxes between atmosphere and biomass are huge, many orders of…

Projects